Injection containing emamectin benzoate and application of injection

Abstract

The invention discloses an injection containing emamectin benzoate and application of the injection. The injection is prepared from the emamectin benzoate, chitosan oligosaccharide, an organic solventand a surface active agent, wherein the weight ratio of the emamectin benzoate to the chitosan oligosaccharide is 20:(1-100); the emamectin benzoate accounts for 0.1wt%-10wt% of the injection; the deacetylation degree of the chitosan oligosaccharide is equal to or higher than 50%; the organic solvent is lower alcohol which contains 1 to 8 carbon atom chains; the organic solvent accounts for 0.1wt% to 95wt% of the injection. The injection is suitable for trunk injection, various pests of woods are prevented, and the injection has the advantages of being low in cost, high in prevention efficiency and wide is application range. The injection is suitable for prevention and control over pests and diseases of the woods, and especially for prevention and control over monochamus alternatus and other wood borers of pine trees, and prevention and control over pine wood nematode, and therefore, the pine wood nematode disease is controlled and prevented.

Description

technical field [0001] The invention belongs to the injection injection in the technical field of pesticides, specifically, an injection containing emamectin and its application. Background technique [0002] Pine wood nematode in my country can cause pine trees to die within dozens of days after infecting them, which is a devastating forestry disaster. The pine wood nematode is mainly transmitted by Monochamus alternatus. The peak period of adult eclosion of Monochamus alternatus is from May to August. During the process of migrating after eclosion, feeding on twigs, and laying eggs in grooves, B. xylophilus fell from the respiratory tract of Monochamus alternatus into the grooves, and quickly penetrated into the xylem of pine trees. [0003] The larvae of Monochamus alternatus are borer pests, which feed on the pine woody tissue and are symbiotic pests with B. xylophilus. Applying pesticides from the outside of the pine tree is also difficult to kill the larvae of B. xylo...

AI Technical Summary

Problems solved by technology

This injection has several disadvantages. First, after the borer pests drill into the tree, the tree vigor is weakened, especially the larvae of the monochamus alternatus are borer pests, which feed on the pine wood tissue. After the pine tree is infected, the tree becomes weaker and weaker. In forestry, it usually takes a long time to punch holes in the trunk and inject the liquid injection solution, especially on pine trees. After inserting the liquid injection bottle, there is little follow-up This will further aggravate the weakening of the pine tree vigor; secondly, because emamectin is a macromolecular compound, it is not easy to conduct systemically in the trunk, and emamectin is easy to accumulate in the trunk of the pine tree And crystallization, which has emphasized the systemic conduction of emamectin in the trunk of pine trees; in addition, the solvent polarity solvent used in the existing injection injection or injection dry preparation is stronger, such as using DMF or DMSO, the preparation is in the trunk. After being diluted, active ingredients tend to aggregate and crystallize, thus affecting the efficacy of the drug

Thereby, prior art can't satisfy those skilled in the art, prevent and control Monochamus alternatus, thereby prevent pine xylophilus disease, realize the relevant plant protection purpose of forest

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